Programmable friction stir welding process

Details Programmable friction stir welding process Programmable friction stir welding process

1996-03-21

1998-02-03

Heinrich, Samuel M.

Metal fusion bonding

Process

Using dynamic frictional energy

2282341, B23K 2012

Patent

active

057135070

ABSTRACT:
A variable pin length stir friction welding method wherein the stir friction welding pin penetrates the workpiece as the workpiece translates. The stir friction welding pin starting at a zero penetration and extending to the depth needed to repair a weld or to make a weld. Then withdrawing the pin to zero penetration as the work is translated. The weld path is thus ramped into and out of the workpiece leaving no holes which need to be repaired. Circumferential welds can be made by keeping the pin extended to the welding depth for at least one complete revolution of the weld.

REFERENCES:
patent: 4122990 (1978-10-01), Tasaki et al.
Industrie-Anzeiger, "Das Verbinden von CrNi-Stahl mit Aluminium und Al-Legierungen nach dem Reibschweissverfahren" May 26, 1970.
The Welding Institute, Research Report, Joining Aluminium to Steel-A review . . . Friction Welding . . . Jun. 1979.

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